Additive manufacturing (AM) enables the creation of highly complex structures with approximately similar mechanical properties as their conventionally-processed counterparts. An established metal powder-based, additive manufacturing technique is selective laser melting (SLM). Recently, additive technologies have begun to segue from rapid prototyping to rapid manufacturing. So far, a wide range of materials were processed via SLM and were mostly analyzed regarding the processing parameters and the mechanical properties. However, the application requirements of today’s components demand the integration of heterogeneous properties in one part to achieve the desired local functionalities. An approach to face the latter challenge represent novel functionally graded multi-materials which can be fabricated by utilizing SLM.
The aim of the presenter’s research is to create a functionally graded multi material based on 316L stainless steel and Cu-10Sn bronze via inline additive manufacturing. Inline processing is enabled by a modified dispensing coating system in which two powders are separated. The materials used were selected due to the high plastic deformation of stainless steel and the good conductivity of bronze. The processed steel-copper multi-material is, therefore, a promising candidate to surmount currently existing limitations, e.g., in the automotive-, aerospace-, and fusion reactor industry.
Finally, the presentation at the Materials Science Engineering will elucidate the microstructural and mechanical properties of the steel-copper functionally graded multi material.
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